As a sanity check have you tested that all the hardware works - use a loopback cable and check with a terminal program that anything you type is echoed back. Using the same loopback cable see if anything you send with your test code gets returned.

Perl is Huffman encoded by design.

In reply to Re: cant read serial data with Device::SerialPort by GrandFather
in thread cant read serial data with Device::SerialPort by Anonymous Monk

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